【摘要】 本文系统地研究了Li₂O-P₂O₅二元系统和LiX（X=F,Cl,Br）-Li₂O-P₂O₅三元系统玻璃的红外和拉曼光谱,讨论了LiX对玻璃结构的影响。当m（Li₂O/P₂O₅摩尔比）较小（m=0.8—1.2）且LiCl含量较低时,LiCl具有与Li₂O一样的断桥氧作用,Cl^-进入网络结构,生成含Cl^-的磷酸盐基团;m及LiCl含量增大时,游离存在的LiCl增多;m大于某值（～1.5）时,LiCl主要以游离形式存在。在上述m范围内,LiF也和Li₂O一样起断桥氧作用,F^-进入网络结构,生成含F^-的磷酸盐基团;LiBr则以游离形式存在。更多还原

【Abstract】 The infrared and Raman spectra of the glasses of Li₂O-P₂O₅ and LiX（X=F, Cl, Br）-Li₂O-P₂O₅ systems have been systematicly studied. The effects of Lix on the glass network structure have been discussed. When the molar ratio m（m=Li₂O/P₂O₅）is smaller（m=0.8—1.2） and the LiCl content is lower, the LiCl has the action of fracturing bridge oxygen as Li₂O, the ions Cl^- enter the network structure and the phosphate groups containing Cl^-ions are formed. With the increase of m value and LiCl content, the amount of LiCl in free state increases. When the m is larger（about 1.5）, LiCl exists mainly in free state. In the above m range the LiF also has the action of fracturing bridge oxygen as Li₂O, the F^- ions enter the network structure and phosphate groups containing F^- ions are formed, but the LiBr exists in free state.更多还原